Lawn-mower.



H. 1 FARMER.

LAWN MOWER.

APPLICATION man an 29. I916 1 ,2]. 6,676. Patented Feb. 20, 1917.

2 SHEETS- SHEET I.

I "DRIVE Ya H. J. FARMER.

LAWN MOWER.

APPLICATION FILED MAY29. ISIS.

Patented Feb. 20, 1917.

- mmesses;

Ira Eur My, AFYZIM'EB blades may be held down against the ground, andthe Fig. 3}}is an similar elevation-of thedrive wheeytaken;

zontal-se' drive wheel, showing one of the drive wheels ""showing. aball-bearingum'ounting tor the.

' side.

iustably mounted invention. Figure STATES PATENT OFFIC LAWiQZMOWEBi y1,216,676 I v Specification otlietters-I'atent. Patented Feb, 20, 1917',

A ncnuon man as, me; Serialflo. 100,447.

I l ratchet pinions bemgut aw my To all whom it may concern: I

Be it-known that I, HERBERT J FARMER, acitizen of the United States,residing at Richmond, in the county of Wayneand gears, State of dndiana,have invented a new and pinions useful Lawn-Mower, of whichthe'following revolving is aspecification. o i with a zstatig hary It 1sthe object of my invention to pro ends on vide a lawn mower in which thecutting oletached to the I ment, comprising the revolving and fixed maybe placsd in difierent once of series of blades, 'may'be assembled as'aunit and adholes 21 arr 'van'gediin a circle around the with relation tothe drive shaft 14; sc fthat by shifting the bolts 20 whichthe revolvingand fixed J from one set of holes 2l to another the fixed be relativelyadjustable so that blade 18 ma they can always be made to coiiperate 14.The fixed blade18 is also adjustable on throughout their length; inwhich the guide the arms 19 by bolts 22, in substantially roller at therear of the mower' may always same way as that described'in my PatentNo; 1,1 72,444 granted February 22,1916,- but the details cf-thisadjustinent are notmaterial'here. H

The end; lates 10 are perforated centrally toallow: the passage ofacentral tie bolt Q5, which-joins the two at such pim'ons to allowthecover'nfldma-y beprovided for the 15. The shaft 14carries the usualblade 18 supporbedat its;

end plat-i 10'bybolts .20, which wheels; in

handle always yieldingly held up; in which the drive wheels may be madeof punchings of sheet metal and may be provided with rubber tires; andin which thedri've wheels may bewmounted on interchangeable and re.- end'plates, and a sleeve movable trunnions or bearing pins, which or pieQB-hfmounted on-the central portion can be adjusted difleren'tpositions .so'asj ofthe'bolt to wear uniformly and which can'be'replates,'- 10,- v'hich'.may alsobe joined, if de placed easily andinexpensively. sinedyby a U-Bhaped spacing bar 27,101

The acompanyiug drawings illustrate my I .is a section through a lawn'mower embodying my invention, the section being taken at right anglesto the axis; Fig; 2- is, a'perspective view of such lawn nowenwithone-drive wheel removed;

the recess 11 elevation of one off the-drive usuallyug: sufiicienh anyone of which taken frorn'the outside; Fi .4'is a wheels,

from the inner side; Fig; 5 is a pa'rtialhori tion t'aken through theaxis of the the pla be; By moving the trunnion out- L wva'irid" 'sli'gktl "to disengage"- the notch 30 andpart of-the cutting 'elexn'ent,this-figure drivewheel; Fig. 6 is. a fragmentary view similar to apartof Fig.6, but showin the drive wheel unountingwithout -.ballearings andFi' 7 is'an elevation of the "co lter of one of the end'pla'te's'rtakenfrom-Hashim with the 1; Lg"3 1, so that The cutting; elementhas ,twoeircularend plates 10, each provided-on the outer. face 'at the' -centerwith a recess 11 ,and -neh'iiflthe outer-Ledge with an annular flange 12""Eaoh end ilate is providedr'on its inner time at rectly; as lugs, assh own in Fig; 5i in the latter case thetru'nnh ms and hubs beinprovided'with ball races and a suitable bah provid latter to projectthrough to'mesh with drive .cu t-ter blades 17, whichcooperate beadjusted around the shift,

from the 11g 31, it canbe turned to bring 7 another nonch 30 intooperative relationship when thejtrunnion ;-an unwdrn portion to a placewhere wear ours: Mo nted on-the trunnion 28, are the :hubs 32 01 thedrive wheels, these hubs be-* mouni ed on the ,t'ru'nnions either di-.hown .in Fig. 6; or on mnbear 15, the annular flanges 12- two armsThesearms are at- 1:52am spflcesrapart the twoi procuring g reaterrigidity; On the project H are mounted bearing The flange 29 of eachtrunnion V has aplurnlity of notches 30;,two notches whenthe t1 unnion.is in place receives a lug 31fixedon the-end plate 10in the :bottom ofthe recessitl, so as to locktheitrunnion to cone 33 being 'I one pointnear its periphe with/a Each-drive wheclcons-i'sts' of 32; ing 13? dor acutter reel she 1.4;",wh'ioh {R which at i s outer endlms an outwardlyproic hm g h 'b a ing an -is ti g fla'1ge-,34-, eisheet: mam stampingfiims the yveb of theTwheel and '20 l at" their .rear ends are reverselycurved-"to Spokes 36, which internal gear has out-.

coliiu n'elitly-cut a\vay 'to -torm spokee 36, a nd at its outer'edge isprovided Wlth an mturhed flange 37; a st-ai'nped sheet metal rim 38 ofchannel shape, fastened to the Han 'e 37 by rivets 39; a rubber tire 40mounted in the rim 38; and a cast internal gear 41 niounted within theflange 37 andagainst the inner face of the web beyond the \vardlyprojecting fcetlii which bear against thdinncr face of the flange n andwhich bear against'oppoeite sidesoflthe headslof thei-iv'ets l l-soas'to lock the internal gear r ,TWo curvedarms {am mounted on theagainst:relative'turning within the flange 37, l,

and may also have. lugs 43 whicliproject through openings in the wheelweb to provide a"furt h er interlock.

11 25 e ween; th l ll o he sleeve, 26 and the .inner faces of the endplates 10, and

points of a provide t ttaehnient to the fl ide bearings m l ite s 1 and2.

1 7 "The'roller 47 :isi'rna cle sectional, and its; cent-r bearingsare'fiprovided by arms .48

I clamped to a central cross piece of the'roller bolted to the roller 1frame 46' by the,"

bolts which connect/the arms 45 to s1 as .Tframe. The

'thedrive whee s and at their rearend's I freni'e. [The-arms 4511i:closely ag end:

"frame 16., Therellerframe46 is also connected to the 'bolt 25by twoouter arms 49 which at their forward ends are pivot'ally I mounted'on'the bolt'Qii onthe outer sides or I arins '45 and 49 and-the rolle.frameeifitogether form the main' positionin letes 10 near I} theperiphery were 1g provided 1.9.11 .Qd arrangedtin circular ries' aboutthe centers of-the end plates, the es!v 52 b 'ir'wmfere{Willie-elongated V vid iilong such :PGSSlblGi to adjilst l .y difielently; =iso 0btain'ed infthe and in'the Stationary h twisting, it ispossiolvingzbla-desof the out t' w ale-18 prop; 1

ease'a condi 'rev a central bolt 25;, being shown as to the ffrontfofsueh plane-in-Figs; 1;-2, and

mien t'htl boltsflO n the desireil holesj esined (mitinn f thej flange,and an internaltions' wee end-{gearaigeinet the two end plates 10 toproper positions in such holes so asto produce eooperat-ion ofthee-evolving and stationary blades; throughout'their Iength,.. the wingnuts 51 are tightened to'lock the end plates in this position -vrelative to the arms 45 and roller frame 46. T-hps the cuttingelementasa whole may bef. adjusted and proper cooperation .of the parts of thecutting element may be obtained, by -the bolts in the holes 7 Thearlnsfi are provided on their inner? faces with a plurality of inwardlyproject ing circular lugs 55, any pair of which .may-.-.

be-madeto project through the pivot holes in the lower ends of thesprings armsbfi b which the operating handle 5'4 is mountec. Byshiftingthe springs arm's 56 f-rom one .pa-ir'of pins '55 to another, the line(if-thrust ofthe handle on the mower may be 'shifted, so as to get thebest advantage under any 35 given conditions, and so as to hold theroller 47 down against the gr'ound with just si1fii- :,ient foree'toprevent itfrom tilting upward due "to tlie'reaction of the-cuttingelement. The spring arms 56am connected by tension springs 58 to,the endplates 10, a chain 59 being provided for attaching one end of,eaeh'spring 58so'that hyjdropping links'of such chainsthe slant at whichthe. springs 58hold the handle 57 may be adjusted. l 5- -I clai'ni'esmyinventionr "1 I a lawn mower, a, drive wheel com-f isingfaisheet metalweb having a periph i nn'i'llar fl a.nge,a rim channel riveted tom'channeh and'an internalgear mounted" W "j within eeidperipheral flangeand coopereting with the heads of the rivets which hold the rim channelin placeto lock the,

ige-er and web against relativfturning; in 05 combination with 2icutting element having fa .ginion meshing with said internal gear an end.plate whiehcoiiperates withsaid proper locking relationship to saidrivets. 2. In afi'lawn moweryw drive wheel com pri-sing'e sheet metalweb havinga-periphem1 annular flange, ,a.' rilin rivetedto ea id gearmounted within sheet metal web to 'hold'the internal;gearin .sa'idperi-pheral--'flange K the heads of'the rive ew'hich: holdthe rim inplace to 1 lo'ek thejgear and web against relative turning, in annhilation with a' cutting element having n: pinion, meshing with s'faidinternalgear 4 endjnfend 1 plate: which -12"o cooperates. withTSaidZSheetmetaI web to hold the internal gear in properloeking'relationship to saidrivets. I

I 3 .1Inva lawnmower, a, dri-Vejwheel-comprising 'a sheet metal web.having a p'e'ripb e d. annalar flange and a reed-ed? ith portions which;oiipereteiwit- 511 hi I projec- "flange,',a rubbertiremounted on saido ad cooperating with t y I125, eral itinuInF'fi-angeanQ prov ded w th pm;jeetifins, and an internal-gear mou ted 'withj i pivotallvattaching saidgamma tive turning, combination with a cutting element hav ng a. pinionmeshing with-'sai lnterna'l gear and an end plate: 'hich'c'ooperateswith jsaid sheet 'metal we to,.hold

-the internal gear in proper locking rela 1 tio'ns hiptosaidprojectlons.

,4."In a lawn mower t'he combination of 11a pair'of drive wheels, a.-i'oller, aframe join- ;ing' the drive wheels" and roller, cuttingblades, an operating'handle and means for frame at different points.

5, In a lawn mower, the combination eta a air of drivewheels; a filler,a frame'joining the roller and drive wheels, an op'era't ing handle,said framefand handle-being provided with cooperating, parts by whichthe handle can be pivotally attached to the frameat'd-ifferent pointsbetween the axis of the drive wheels and the axis of the 'roller,

and a cutting element mounted in said frame and adjustable around theaxis'ofthe drive wheel. n

6. In a lawn mower, the combination of a 7 pair of drive wheels, 1-roller,-a .fra'me join} ing the roller and drive wheels, and anopcratinghandle, said frame and handlebe in'g' provided with cooperating, partsby which the handle can be pivotally attached to the-frame atdifi'erentpoints between the axis of .the drive wheels and the axiaof the roller.

7 In a lawn mower, the combination of a pair of drive wheels,,,a rollerbehind the drive wheels, a' frame joining the drive .wheels androller, an operating handle pivg,

otally mounted on said frame-between .the-

drive wheels and the roller, a tensionsprin'g connecting said ha dle andsaid frame for holding the'handle raised and a-ch ain by which saidtension spring s attached atone end so that bydropping links of said.ch'ai nthea'ngle of ts handle may beadjusted. 8. In a lawn mower, thecombination of an end plate forming a support forthe cutting elements ofthe lawn mower and centrally recessed on its outer fac'e and providedwith a central'outwardly projecting.

member, a complete.trunnion lmounted 0n] said outwardly projecting,member; and. seated ih said recess, said trunnionand the "bottom of'therecess insaid end plate being" provided 7 with cooperating interlockingr P t w ,vided' with a hich interlock for a plurality: of-l po- V,sitions'of said trunnion. about said outwardly member," a completetrunnion mounted on said outwardly'f projecting member, said trunnionand-said end plate being provided with cooperating interlookingma l swhich.

handle to said V r'evolvin projecting member, .and a drivexjw heelflmounted-on said trunnion. 1' 9 Ina lawn mower, the combination of anendeplate'forming a support for the cut ting elements of the lawn mowerand pro-Q antral outwardly projecting V interlock for pluralitybfpositions of said trunnion abo it said outwardly projecting;

member, and a drive'wh'eel mounted on said "blade, and me ans forfastening each of said end plates to said frame, said fastening meansincluding a bolt and coiiperating holes in said frame and endplates,-and the holes in one of such parts being elongated'circumferentil ll-y about the axis of the driving wheelsi 11. In alawnmower, the combination oi? a pair. of dri'ringf'wheels, a roller, aframe joining the-'1: )llers jand the driving wheels and' pivotallymounted on the axis of the I drivingwhee .s, a cutting elementimounted 9for adJustmert ar undithe .axisfofthe 'driv- .ing wheels, sa ideu tingelement inludinga revolving reel and a fix ed cuttenblade and a air ofend plates earrying saidreel and 'lade, said e1 id platefsbeing providedwith Q5 series of h-olei, arrangedconeentrically with the axis of thedrivingwheels' and elongated circumferenti rally, and boltspassingthrough I said holes' fo fastening theend plates to said frame. r 10o'12. In a la'vn' o'wer, the-combinationef 'a pair of end plates, fixedand movable cutting blades mounted thereon, a stationary;- eentral boltjaining and projecting through said end plates, a tube surrounding "saidcentral 'boltxand spacing said end 'plates' apart,

'drive wheelsjotatably mounted on said central bolt beyo (1d the-endplates, a frameproa zvided with a i'o'ller'and I'nou'nted on-saidcen-'tral bo1t,.an.d*means, for'adjust'ably "attach i'ng said end plates tosaid frame so that the I end frlates and cutting blades can be ad-{)ustedmifcuil ferentially aroundthecentra'l olt. 1 a

a pair of end plates, fixed andmovable cut- 'ting blades mountedthereon, a stationary cein'tral; boltrj pining and projecting rthrou-ghsaidend plat :s', a tube surrounding said' cem tralbo'lt andspacing-said end "plates apart, c

drive wheels rotatably mounted on said central bolt heyrndtheen'daplatea-and a frame,

provided witlra roller and mounted on said central bolt-1 'm p 14 .In ala wn-m'ower, the. combination of apa'ir of end plates, fixed andmovable out ting blades-Tinounted thereon, a stationary central'boltjoining and projecting throughsaid: end plates, and marrying means forspacing the and plates -apar t, drive wheels 13; In a la in mower,,.'the combination of 115 l()l:lt:ll)l u'munted on said central bolt be-\'und the end plates, and a frame previdedwill: a' mller and mounted onsaid central lmlt between said end plates.

apain nl' end plates. fixed and movalfle eut ting: bladesmountedt|1ere0n. astationary ('vnUallm-ll joining and projecting throughsaid end plates and (ar aring means for spac- 10 inn' the end lales,a:n-l,.dl'i\'e wheels rota- 171. In a la wn ,IIXOWQIT, the combil'latinnof tably mounted on said central hell; beyond the end plates, and aframe provided with a roller and mounted (in said central bolt.

, In witness whereof, I HERBERT J. FARMER have hereunto set my handatRichmond,

Indiana, this' 23d dayof May, A. D. one

thousand nine hundred and sixteen.

HERBERT J. FARMER Witness: v

REG1NA M. Bnonmucii';

